Enhancing the Performance of Wireless Sensor Networks with MIMO Communications
September 2006
Jared R. Burdin, The MITRE Corporation
James Dunyak, The MITRE Corporation
ABSTRACT
Wireless sensor networks are an enabling technology for
many future surveillance-oriented applications. Before a
practical wireless sensor network is realized, however,
significant challenges must be overcome. Chief among the
obstacles to netted sensors is providing low power, robust
communications between sensor nodes. Multiple lnput,
Multiple Output (MIMO) communication promises performance
enhancements over conventional single input, single
output (SISO) technology for the same radiated power If
leveraged in a sensor network, MIMO may be able to
provide significant network performance improvements in
power consumption, latency, and network robustness. This
paper investigates the benefit of MIMO implementations in
multihop wireless sensor networks in terms of the mean
path length. We find that MIMO provides improvement to
wireless sensor networks, particularly those that have low
to midrange node densities.
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